210433213 has 2 divisors, whose sum is σ = 210433214. Its totient is φ = 210433212.

The previous prime is 210433211. The next prime is 210433219. The reversal of 210433213 is 312334012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189392644 + 21040569 = 13762^2 + 4587^2 .

It is a cyclic number.

It is not a de Polignac number, because 210433213 - 2¹ = 210433211 is a prime.

Together with 210433211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210433211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105216606 + 105216607.

It is an arithmetic number, because the mean of its divisors is an integer number (105216607).

Almost surely, 2^210433213 is an apocalyptic number.

It is an amenable number.

210433213 is a deficient number, since it is larger than the sum of its proper divisors (1).

210433213 is an equidigital number, since it uses as much as digits as its factorization.

210433213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 210433213 is about 14506.3163139372. The cubic root of 210433213 is about 594.8006422011.

Adding to 210433213 its reverse (312334012), we get a palindrome (522767225).

The spelling of 210433213 in words is "two hundred ten million, four hundred thirty-three thousand, two hundred thirteen".